java-type-convertibility

Setting out to answer the question: Given two instances of java.lang.reflect.Type, is one convertible to the other?

...subject to these constraints:

• Must respect boxing/unboxing:

    Types.areConvertible(int.class, Integer.class)  // true
    Types.areConvertible(Integer.class, int.class)  // true
  

• Must respect primitive widening conversions:

    Types.areConvertible(int.class, short.class)  // true
    Types.areConvertible(int.class, Short.class)  // true
  

• No external dependencies

• Supports ParameterizedTypes, WildcardTypes, GenericArrayTypes, etc.

• No published API other than Types.areConvertible(to, from)